The development of nanotechnology and nanomaterials provides new ways and ideas for the development of anti-static products. The special conductivity, electromagnetic properties, super-absorb ability and wide band of nanomaterials have created new conditions for the research and development of conductive absorbing fabrics. Due to the electrostatic effect, chemical fiber clothing and chemical fiber carpets have a discharge effect when rubbed, and at the same time, it is easy to adsorb dust, which brings a lot of inconvenience to the user; some operating platforms, cabin welding and other first-line work sites are prone to sparks due to static electricity, causing an explosion. . From the perspective of safety, it is an important task to improve the quality of chemical fiber products and solve the problem of static electricity.
If connected to the resin with nano-powders with semiconducting properties ( such as nano-TIO2, nano-ZNO and nano-FE2O3) , the resin will have electrostatic shielding performance, which greatly reduces the electrostatic effect and greatly improves the safety factor.
The anti-static master batch prepared by dispersing the multi-walled carbon nanotubes in the self-made anti-static carrier PR-86 can produce an anti-static PP fiber with excellent performance. The presence of multi-walled carbon nanotubes enhances the degree of polarization of the microfiber phase and the antistatic effect of the antistatic master batch. The antistatic properties of polypropylene fibers and the antistatic fibers made from polypropylene blends can also be improved by using carbon nanotubes.
The use of nanotechnology to develop conductive adhesives and conductive coatings, surface treatment of the fabric, or the addition of nano-metal powder during the spinning process to make the fibers conductive. For example, in the antistatic agent for polyester–Nano-doped tin dioxide (ATO) finishing agent, a reasonable stable dispersing agent is selected to make the particles mono-disperse, and the anti-static finishing agent is used to treat the polyester fabric, and the surface resistance of the fabric is The unprocessed >1012 Ω level is reduced to the order of <1010 Ω, washing 50 times, the antistatic effect is basically unchanged.
The conductive fibers with good performance include black conductive fibers with carbon black as conductive material and white conductive fibers with white powder materials such as nano SNO2, nano ZNO and nano TIO2 as conductive materials. The white-tone conductive fiber is mainly used for making protective clothing, overalls and decorative conductive materials. Its color is better than that of black conductive fibers, and its application range is wider.
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